Observation of Color-suppressed $\bar{B}^0 \to D^{0}π^0$, $D^{*0}π^0$, $D^0η$, and $D^0ω$ Decays

K. Abe; The Belle Collaboration

doi:10.1103/PhysRevLett.88.052002

paper

Observation of Color-suppressed $B ˉ^{0} \to D^{0} π^{0}$ , $D^{* 0} π^{0}$ , $D^{0} η$ , and $D^{0} ω$ Decays

arXiv:hep-ex/0109021 · doi:10.1103/PhysRevLett.88.052002

Abstract

We report the first observation of color-suppressed $B ˉ^{0} \to D^{0} π^{0}$ , $D^{* 0} π^{0}$ , $D^{0} η$ , and $D^{0} ω$ decays and evidence for $B ˉ^{0} \to D^{* 0} η$ and $D^{* 0} ω$ . The branching fractions are found to be $B (B ˉ^{0} \to D^{0} π^{0}) = (3.1 \pm 0.4 \pm 0.5) \times 1 0^{- 4}$ , ${\cal B} (\bar{B}{}^0 \to D^{*0} π^0) = (2.7 ^{+0.8}_{-0.7} ^{+0.5}_{-0.6})\times 10^{-4}$, $B (B ˉ^{0} \to D^{0} η) = (1. 4_{- 0.4}^{+ 0.5} \pm 0.3) \times 1 0^{- 4}$ , $B (B ˉ^{0} \to D^{0} ω) = (1.8 \pm 0. 5_{- 0.3}^{+ 0.4}) \times 1 0^{- 4}$ , and we set 90% confidence level upper limits of $B (B ˉ^{0} \to D^{* 0} η) < 4.6 \times 1 0^{- 4}$ and $B (B ˉ^{0} \to D^{* 0} ω) < 7.9 \times 1 0^{- 4}$ . The analysis is based on a data sample of 21.3 fb $^{- 1}$ collected at the $Υ (4 S)$ resonance by the Belle detector at the KEKB $e^{+} e^{-}$ collider.

submitted to Physical Review Letters

Observation of Color-suppressed $B ˉ^{0} \to D^{0} π^{0}$ , $D^{* 0} π^{0}$ , $D^{0} η$ , and $D^{0} ω$ Decays

Abstract

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Observation of Color-suppressed Bˉ0→D0π0, D∗0π0, D0η, and D0ω Decays

Abstract

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Cited by in corpus (40)

Observation of Color-suppressed $B ˉ^{0} \to D^{0} π^{0}$ , $D^{* 0} π^{0}$ , $D^{0} η$ , and $D^{0} ω$ Decays